/**
 * Copyright 2012-2014 Java Creed.
 * 
 * Licensed under the Apache License, Version 2.0 (the "<em>License</em>");
 * you may not use this file except in compliance with the License. You may 
 * obtain a copy of the License at: 
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 
 * License for the specific language governing permissions and limitations 
 * under the License.
 */
package com.javacreed.examples.maven.um;

import org.apache.commons.lang3.math.NumberUtils;

public class Calculator {

  public double add(final double... numbers) {
    double total = 0;
    for (final double number : numbers) {
      total += number;
    }
    return total;
  }

  public double[] parseNumbers(final String text) {
    final String[] parts = text.split(" ");
    final double[] numbers = new double[parts.length];
    for (int i = 0; i < parts.length; i++) {
      if (NumberUtils.isNumber(parts[i])) {
        numbers[i] = Double.parseDouble(parts[i]);
      }
    }

    return numbers;
  }
}
